Posted on 07/25/2007 1:17:54 PM PDT by topher
1HP=746W does not work here.
There is no 100% efficient way to create electrical energy out of mechanical or vice versa.
It takes a 17HP diesel engine to create 6KW of power with a small generator.
Using a human engine like yourself or Al Gore and assume that both of you would provide 0.1HP the output of electrical energy will be variably different. ;)
Big Deal!
We used a pedal generator to power our Commo gear
(ANGRC109)and/or charge batteries 40 years ago.
bookmark
>> I have never understood why all the bikes down at the health club need to be plugged in to work.
Yeah, ain’t that a hoot?
However, not ALL of them need to be plugged in. For example, I think Cybex makes models that are freestanding.
The only drawback is they lose the display if you stop pedaling for long enough. An issue, but not a big one.
super cool for later ping
1.) Set these up in every jail in place of recreation and TV rooms. Send the juice out to the taxpayers as a means of reducing their electric bill.
2.) For the rest of us make a version that brews fresh coffee (or beer) while you pedal.
Lose weight and generate electricity.
Which is usually about 1.5 seconds. Drop your newspaper or stop for a quick drink and all progress info is gone. Seems like a stupid design flaw. They can't put some sort of memory device (or battery) in the thing that can hold workout info for a minute or two without current? That's why I use my ironman chrono as a backup.
Give a man fire and warm him for the night.
Set a man on fire and warm him for the rest of his life.
Let’s all pitch in and get lard - a_s enviro boy Gore on of these. Kill two birds with one stone!!!
Gore won’t be very efficient. He’ll release too much greenhouse gas while pedaling thus reducing usable electrical output considerably.
I think you dropped a zero. I get an average output of about 200 Megawatts which is the size of a moderately small generator. A typical coal fired generator puts out about a 1000 Megawatts. Replacing the energy of ONE moderately small generator with the energy of a BILLION people working their butts off for 20 hours a week is far, far beyond insanity.
toooooo........
pddddle ---sthjjhsdft while
FReepg...LKGHJ*(...is shurrrrr
jdhnsi....HARD!!!
*whew*
I bought a key exactly like the one in the panel here:
http://images.channeladvisor.com/Sell/SSProfiles/23000010/Images/1/4400%20PHOTOSHOPPED.jpg
The original ‘woodie’!
The only drawback is they lose the display if you stop pedaling for long enough. An issue, but not a big one.
Guess batteries havent made it to that part of the engineering world.
You’re crazy if you think the average human can produce 0.1 HP sustained.
You’re right in thinking that directly powering the cutting chain would be a tough go. Pedaling the chain wouldn’t generate much torque (twisting power) and would easily get stopped. But I could see the pedaling powering a generator to charge the battery, which, in the case of a plain old lead-acid battery can store quite a load of power. Without having done the math, I have no doubt that if you were to operate the chainsaw continuously (and be cutting wood, not just letting it run wide open, unloaded) and pedal-generate continuously, the saw’s consumption would greatly exceed the generator’s output and so eventually the batt would deplete to where it would no longer turn the saw.
>> Guess batteries havent made it to that part of the engineering world.
Dunno why they don’t put batteries in... seems kind of obvious.
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